Motion and still isolation master-slave cooperative control double superior satellite platform

Abstract

The invention provides a motion and still isolation master-slave cooperative control double superior satellite platform. The platform comprises a plurality of magnetic suspension mechanisms, a load cabin and a service cabin, wherein the load cabin is connected with the service cabin through the magnetic suspension mechanisms; the butt joint faces of the magnetic suspension mechanisms opposite to the load cabin and the service cabin are symmetrically spaced from one another in parallel or vertically; the center point connecting lines of symmetrically arranged magnetic suspension mechanisms are perpendicular to the mass center connecting line of the load cabin and the service cabin. The load cabin and the service cabin are independent of each other in structure, wherein the load cabin is provided with a magnetic suspension mechanism magnet part and is a still cabin section, the service cabin is provided with a magnetic suspension mechanism coil part and is a motion cabin section, the two cabins are not in contact through the non-contact magnetic suspension mechanisms, the service cabin vibrates and the interference is not transmitted to the load cabin, so that the effect that the effective load keeps still in a moving environment and the motion and the still of the two cabins are isolated is achieved.

Description

technical field [0001] The invention relates to satellites, in particular to a dual-super satellite platform with dynamic and static isolation master-slave cooperative control. Background technique [0002] The platform interference caused by moving parts and flexible parts on the satellite is the main factor restricting the "ultra-precision and ultra-stability" of the satellite platform. Random disturbances and vibrations in various frequency bands generated by moving parts such as flywheels, refrigerators, thrusters, etc., greatly affect the pointing accuracy and attitude stability of the satellite platform, and are the main cause of load vibration. Flexible components such as solar panels and large-scale deployed antennas not only cause interference to the satellite platform, but their low-frequency modes also greatly limit the bandwidth of the satellite control system, resulting in the performance of the control system not being fully utilized. [0003] At present, the ...

AI Technical Summary

Problems solved by technology

That is, the non-contact magnetic levitation mechanism is used to realize the dynamic and static space isolation between the vibration source and the load, and the interference of the micro-vibration of the platform to the load is eliminated; the master-slave cooperative control strategy of the load as the main and the platform as the auxiliary is adopted, and the "dead zone" gap is used reasonably and skillfully. Linearity, turning harm into benefit, realizes the "ultra-precise and ultra-stable" control of the satellite, and solves the bottleneck problem that the micro-vibration of the platform in the traditional design makes it difficult to improve the pointing accuracy and stability of the load

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